• Military medicine · Jul 2023

    Single-Center Experience With the Seraph-100® Microbind® Affinity Blood Filter in Patients With SARS-CoV-2 Infection and Septic Shock at a Military Treatment Facility.

    • Steven Stoffel, Joshua Boster, Zachary Jarrett, Melissa Rosas, Arjun Kalra, Mai Nugyen, Michael Morris, and Robert Walter.
    • Department of Internal Medicine, Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234-4504, USA.
    • Mil Med. 2023 Jul 22; 188 (7-8): e2670e2674e2670-e2674.

    IntroductionCoronavirus disease 2019 (COVID-19) infection is characterized by a dysregulated inflammatory response, which may result in severe hemodynamic instability and septic shock. The Seraph-100® Microbind® Affinity Blood Filter is a commercially available extracorporeal pathogen absorbent device with the ability to bind pathogens and cytokines present within the blood. Our study aimed to evaluate the efficacy of the Seraph-100® for patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and septic shock.Materials And MethodsA retrospective review was performed to evaluate the use of the Seraph-100® blood filter at a Single Center tertiary-care facility at Brooke Army Medical Center from 2020 to 2021. Nine patients (11 treatments) were completed with the Seraph-100® blood filter in patients with SARS-CoV-2 infection and septic shock. The Seraph-100® blood filter was used in combination with continuous renal replacement therapy and slow low-efficiency dialysis or directly in parallel with the extracorporeal membrane oxygenation circuit.ResultsWithin this cohort, there was a statistically significant improvement in the following clinical parameters comparing values to before and after treatment with the Seraph-100® blood filter: Mean arterial pressure (mmHg) (64.2 ± 2.36 vs. 76.2 ± 2.68; P < .001), heart rate (beats per minute) (128 ± 6.6 vs. 100.3 ± 6.07; P < .001), administered fraction of oxygen (%) (74.4 ± 10.58 vs. 60.3 ± 10.35; P < .001), serum lactate (mmol/L) (6.14 ± 1.25 vs. 2.8 ± 1.14; P = .0095), and pH (7.29 ± 0.03 vs. 7.39 ± 0.04; P = .0203). There were statistically significant improvements in vasopressor requirements: norepinephrine (mcg/min) (36.3 ± 4.74 vs. 8.3 ± 3.92; P < .001), vasopressin (units/min) (0.04 ± 0.004 vs. 0.02 ± 0.003; P < .001), dobutamine (mcg/kg/min) (2.3 ± 1.00 vs. 0.2 ± 0.75; P = .006) and angiotensin II (ng/kg/min) (34.5 ± 6.4 vs. 3.3 ± 5.26; P < .001).ConclusionsThe use of the Seraph-100® blood filter was associated with statistically and clinically significant improvements in hemodynamic parameters and decreased vasopressor requirements in patients with septic shock and SARS-CoV-2 infection.Published by Oxford University Press on behalf of the Association of Military Surgeons of the United States 2023. This work is written by (a) US Government employee(s) and is in the public domain in the US.

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